Mandibular condylectomy in a standing horse for treatment for osteoarthritis of the temporomandibular joint
Authors: Sanders R. E., Schumacher J., Brama P. A. J., Zarelli M., Kearney C. M.
Journal: Equine Veterinary Education
Summary
# Editorial Summary A standing mandibular condylectomy under sedation and regional anaesthesia successfully treated a Sport Horse mare presenting with severe mastication dysfunction and weight loss caused by degenerative temporomandibular joint disease. Radiography confirmed extensive osteoarthritis at the left TMJ accompanied by a firm, expanding soft-tissue mass, which precluded conventional joint treatment options given the horse's advanced age and poor body condition. By performing the surgical removal of the mandibular condyle as a standing procedure—rather than requiring general anaesthesia with its inherent risks in a debilitated patient—the surgical team achieved good intraoperative tolerance and significant postoperative improvement in the mare's clinical signs. This approach demonstrates a pragmatic alternative for horses with end-stage TMJ osteoarthritis where cost or medical status contraindicates more conservative management, and highlights the potential of standing surgical techniques to expand treatment options in equine dentofacial disease. Farriers and veterinarians managing horses with chronic mastication problems should consider that condylectomy may restore adequate function when joint disease is advanced, particularly in cases where owner resources or patient fitness limit other interventions.
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Practical Takeaways
- •Standing mandibular condylectomy is a viable alternative for treating severe TMJ osteoarthritis when general anesthesia is contraindicated due to age, debilitation, or economic factors
- •This procedure can improve mastication and allow weight recovery even in horses with extensive joint degeneration
- •Consider regional anesthesia techniques as a risk-reduction strategy for geriatric or compromised equine surgical candidates
Key Findings
- •Mandibular condylectomy performed as a standing procedure under sedation and regional anesthesia was well-tolerated in a debilitated mare
- •Post-operative improvement was achieved despite advanced osteoarthritic changes of the temporomandibular joint
- •Standing surgical approach eliminated general anesthesia risks in a compromised patient with financial constraints